Serious Power Issues with T61

All,
  The organization I work for has started to have some serious power issues with our T61 model Thinkpads. Additionally, the problem now seem to be carrying over into our T500 Thinkpads.
  About 4 months ago we started receiving consistant calls regarding users that can't power their laptops on. These are T61 and T500 laptops mounted to mobile carts in our various nursing units in numerous hospitals. These laptops sit stationary for 95% of the time and are almost always plugged into wall power. We quickly discovered that the only way to get the laptops to power on was to unplug them from all power sources and reseat the battery, after which they powered right on. We've had this problem in the past with users T61s that aren't on carts, but this is slightly different as the batteries on the cart mounted laptops are always 100% drained after we reseat them.
  I'm completely baffled by this issue. I've tried every variation of 3 different carts, -- one with external battery on cart, two without -- both 90 and 65 watt power supplies, and standard and 9 cell batteries that I can come up with and the problem continues to occur. Initially we had atributed the problem to ESD because this started during the low humidity months of winter, but it is now spring and the problem is still happening.
  Under normal circumstances I'd just replace the few ailing laptops and call them in under warranty, but this seems to be a general model issue as this is occuring across the board on 100+ laptops at this hospital alone. Any assistance to help identify the issue and/or how to resolve it would be appreciated.
Thanks,
David

Slider5634,
Do you have a critical situation open for this?  If so, while you are free to post here, working through the project office as a managed account should get you to the right level of support to address an issue that sounds pervasive, and may or may not be influenced by unknown environmental factors.
If you don't have a situation open, then I would urdge you to contact your account rep.  If you need help, or unsure of this, please send me a PM with your contact information, and your hospital or corp account name so I can get you the right level of assistance.
jgm1234,
What model type T61's are you experiencing this issue with?  Can you provide some more information here about the situation?  Configuration, when this first started occuring,  environment (connected to lan, wired / wireless, stand alone, all in same physical location, or distributed at multiple locations, etc)
Thanks!
Mark
ThinkPads: S30, T43, X60t, X1, W700ds, IdeaPad Y710, IdeaCentre: A300, IdeaPad K1
Mark Hopkins
Program Manager, Lenovo Social Media (Services)
twitter @lenovoforums
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    Regards
    Tim

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